Abstract
The depolarization of a satellite signal due to scattering by rain drops has been studied at a tropical location. The depolarization phenomenon is observed in terms of an enhancement of cross-polar component of a horizontally polarized Ku-band signal. The differential phase shifts, dominantly responsible for causing depolarization at Ku-band due to scattering by spheroidal raindrops, are computed by employing the point matching technique and using experimentally obtained rain drop size distribution (DSD) data. The differential phase shift is significant for large drops (>; 3mm). Consequently, DSD plays an important role in determining the depolarization of the satellite signal.
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